Document
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Applied Physics Letters
type: Collection
type: Generically Dependent Continuant
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publication venue for: Determination of the optical energy gap of Ge1-xSnx alloys with 0<x<0.14
type: Document
type: Entity
type: Continuant
type: Periodical
type: Information Content Entity
type: Journal

Continuant
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Generically Dependent Continuant
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RDF description of Determination of the optical energy gap of Ge1-xSnx alloys with 0<x<0.14 - http://orbis.uaslp.mx/vivo/individual/scopus1371
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date: 2026-08-24T03:51:13
publisher: vivo
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Article
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Determination of the optical energy gap of Ge1-xSnx alloys with 0<x<0.14
page end: 4534
most specific type: Document
related by: authorship 8213
type: Entity
type: Article
origen: scopus
type: Information Content Entity
freetext keyword: Approximation theory; Chemical vapor deposition; Coherent light; Deformation; Energy gap; Epitaxial growth; Estimation; Fast Fourier transforms; Interferometers; Magnetron sputtering; Single crystals; Solubility; Thermodynamics; Tin alloys; Coherent-potential approximation (CPA); Far infrared radiation (FIR); Local density approximation (LDA); Virtual crystal approximation (VCA); Germanium alloys
related by: authorship 8214
type: Continuant
estado: published
has publication venue: Applied Physics Letters
doi: 10.1063/1.1758772
page start: 4532
crisid: 1372
date time value: article date 1372
related by: authorship 8215
type: Generically Dependent Continuant
issue: 22
abstract: A fast-Fourier-transform infrared interferometer was used to determine the optical energy gap of Ge1-xSnx alloys from transmittance measurements. It was shown by the results that the change from indirect to direct band gap occurs at a lower critical Sn concentration (xc) that the value predicted from the virtual crystal approximation, tight binding and pseudopotential models. It was observed that there is a close agreement between the experimental results and the predictions with deformation potential theory. It was found that the concentration xc, which is theoretically expected to be 0.09, is observed to lie between 0.10<xc<0.13.
volume: 84
related by: authorship 8216
type: Document
e iscopus: 2-s2.0-3042784698
most specific type: Article
type: Thing

Information Content Entity
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